ELECTROMAGNETIC DECAYS OF EXCITED HYPERONS

被引：22
作者：
UMINO, Y
MYHRER, F
机构：
[1] MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139
[2] MIT,DEPT PHYS,CAMBRIDGE,MA 02139
[3] UNIV S CAROLINA,DEPT PHYS & ASTRON,COLUMBIA,SC 29208
来源：
NUCLEAR PHYSICS A | 1991年 / 529卷 / 04期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0375-9474(91)90594-V
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The negative-parity hyperon masses are calculated in the chiral bag model. The flavor contents of the hyperons are found to be different from what is found in the non-relativistic quark model. Using these new wave functions for the excited hyperons, the radiative decay widths of LAMBDA(1520) and LAMBDA(1405) to the ground states-LAMBDA and SIGMA-0 are determined. We find these widths to be much smaller than the non-relativistic quark model ones and explain why the two models give different predictions.
引用
收藏
页码：713 / 726
页数：14
相关论文
共 50 条
  • [31] RADIATIVE BETA-DECAYS OF HYPERONS
    KAGANSKI.AM
    SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1970, 11 (06): : 709 - &
  • [32] Electromagnetic properties of hyperons
    Bartos, E.
    Dubnicka, S.
    Dubnickova, A. -Z.
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2011, 219 : 166 - 169
  • [33] POLARIZATION EFFECTS IN LEPTONIC DECAYS OF HYPERONS
    LYULKA, VA
    SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1967, 4 (04): : 564 - &
  • [34] NONLEPTONIC DECAYS OF K MESONS AND HYPERONS
    VAINSHTEIN, AI
    ZAKHAROV, VI
    SHIFMAN, MA
    ZHURNAL EKSPERIMENTALNOI I TEORETICHESKOI FIZIKI, 1977, 72 (04): : 1275 - 1297
  • [35] SOME REMARKS ON LEPTON DECAYS OF HYPERONS
    LYULKA, VA
    STARTZEV, AA
    PHYSICS LETTERS, 1963, 7 (04): : 283 - 284
  • [36] A POSSIBLE SCHEME FOR NONLEPTONIC DECAYS OF HYPERONS
    HAYASHI, T
    KANEKO, T
    MAKI, Z
    PROGRESS OF THEORETICAL PHYSICS, 1966, 35 (01): : 80 - &
  • [37] A DYNAMICAL APPROACH TO NONLEPTONIC DECAYS OF HYPERONS
    KANAZAWA, A
    SAKUMA, T
    TERAZAWA, O
    PROGRESS OF THEORETICAL PHYSICS, 1966, 35 (01): : 74 - &
  • [38] SEMI-LEPTONIC DECAYS OF HYPERONS
    BOURQUIN, M
    BROWN, RM
    CHATELUS, Y
    CHOLLET, JC
    DEGRE, A
    FROIDEVAUX, D
    FYFE, AR
    GAILLARD, JM
    GEE, CNP
    GIBSON, WM
    IGOKEMENES, P
    JEFFREYS, PW
    MERKEL, B
    MORAND, R
    PLOTHOW, H
    REPELLIN, JP
    SAUNDERS, BJ
    SAUVAGE, G
    SCHIBY, B
    SIEBERT, HW
    SMITH, VJ
    STREIT, KP
    STRUB, R
    THRESHER, JJ
    HELVETICA PHYSICA ACTA, 1981, 54 (04): : 648 - 649
  • [39] THE NON-LEPTONIC DECAYS OF HYPERONS
    MAKI, Z
    OHNUKI, Y
    PROGRESS OF THEORETICAL PHYSICS, 1961, 25 (03): : 353 - 360
  • [40] RADIATIVE WEAK DECAYS OF UNCHARMED HYPERONS
    SHARMA, K
    VERMA, RC
    KHANNA, MP
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1979, 5 (11) : 1519 - 1524
12345